Results 311 to 320 of about 311,812 (350)

Electrochemical Detection of Fertility Hormones

Critical Reviews in Biomedical Engineering, 2019
Fertility hormone levels are constantly changing, but it is crucial for a woman to be able to monitor her fertility levels if she is interested in conceiving. Women and physicians often have a difficult time determining ovulation windows due to fluctuating menstrual cycles and inaccurate interpretations of hormone levels.
Mukund, Khanwalker, Jared, Johns, Mackenzie M, Honikel, Victoria, Smith, Stephanie, Maxwell, Sandhya, Santhanaraman, Jeffrey T, La Belle   +6 more
openaire   +2 more sources

Electrochemical detection and characterization of proteins

Biosensors and Bioelectronics, 2006
On-line detection of serum proteins is of clinical relevance, in detecting leaks and biofouling in hemofiltration equipment, biofilm growth on prosthetic devices, or hemolysis within a prosthetic or therapeutic device. Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) were employed to detect and analyze micromolar concentrations ...
Matthew F, Smiechowski, Vadim F, Lvovich, Shuvo, Roy, Aaron, Fleischman, William H, Fissell, Alan T, Riga   +5 more
openaire   +2 more sources

Combining microfluidics and electrochemical detection

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009
This paper describes two configurations that integrate electrochemical detection into microfluidic devices. The first configuration is a low-cost approach based on the use of PCB technology. This device was applied to electrochemiluminescence detection.
Rosaria, Ferrigno, Patrick, Pittet, Khaled, Stephan, Béatrice, Léca-Bouvier, Jean-Marc, Galvan, Louis, Renaud, Pierre, Morin   +6 more
openaire   +2 more sources

Strategies for Electrochemical Detection in Immunochemistry

Bioanalysis, 2009
In this review, the current status of research in electrochemical immunosensors is considered. We primarily focus on label-free and enzyme-labeled immunosensors, and the analytical capabilities of these devices are discussed. Moreover, the use of magnetic beads as new materials for immunosensors coupled with electrochemical sensing is also described ...
Sonia, Centi, Serena, Laschi, Marco, Mascini   +2 more
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Electrochemical Detection of Single Molecules

Accounts of Chemical Research, 1995
The electrochemical behavior of a single molecule can be observed by trapping a small volume of a dilute solution of the electroactive species between an ultramicroelectrode tip with a diameter of ∼15 nanometers and a conductive substrate. A scanning electrochemical microscope was used to adjust the tip-substrate distance (∼10 nanometers),
F R, Fan, A J, Bard
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Electrochemical aptasensor for tetracycline detection

Bioprocess and Biosystems Engineering, 2009
An electrochemical aptasensor was developed for the detection of tetracycline using ssDNA aptamer that selectively binds to tetracycline as recognition element. The aptamer was highly selective for tetracycline which distinguishes minor structural changes on other tetracycline derivatives.
Yoon-Jin, Kim, Yeon Seok, Kim, Javed H, Niazi, Man Bock, Gu   +3 more
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Electrochemical detection in capillary electrophoresis

ELECTROPHORESIS, 1997
AbstractRecent advances in the design and application of electrochemical detection (EC) systems in capillary electrophoresis (CE) are reviewed, with the objective of providing the non‐electrochemist with a state‐of‐the‐art picture of CEEC instrumentation and an overview of the primary analytes and samples for which the technique is best suited.
P D, Voegel, R P, Baldwin
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Electrochemical Approach To Detect Apoptosis

Analytical Chemistry, 2008
This paper reports an electrochemical approach for detection of apoptosis. Here we prepare a gold electrode modified with a helix peptide ferrocene (Fc)-GDGDEVDGC. Fc is used as an electroactive reporter and the peptide as a recognition and cleavage site of caspase-3, which is a special proteinase to apoptosis.
Han, Xiao, Lei, Liu, Fanben, Meng, Junyi, Huang, Genxi, Li   +4 more
openaire   +2 more sources

Tape-Stripping Electrochemical Detection of Melanoma

Analytical Chemistry, 2019
A noninvasive electrochemical melanoma detection approach based on using adhesive tapes for collecting and fixing cells from a suspicious skin area and transferring the cells into a scanning electrochemical microscope (SECM) is presented. The adhesive layer collects the cells reproducibly and keeps them well adhered on the tape during experiments in an
Sorour Darvishi, Horst Pick, Tzu-En Lin, Yingdi Zhu, Xiaoyun Li, Ping-Chih Ho, Hubert H. Girault, Andreas Lesch   +7 more
openaire   +4 more sources

Detection Limits and Selectivity in Electrochemical Detectors

Analytical Chemistry, 1988
Electrochemistry provides a powerful set of tools for analysis. Its power derives from the fact that electrochemistry is inherently chemical in nature. This instrumentation article describes developments in current-carrying electrochemical detectors.
S G, Weber, J T, Long
openaire   +2 more sources